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arXiv · 2106.15805

A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers

Kamal Bora·R. F. L. Holanda·Shantanu Desai·S. H. Pereira
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Abstract

In this letter, we implement a test of the standard law for the dark matter density evolution. For this purpose, only a flat universe and the validity of the FRW metric are assumed. A deformed dark matter density evolution law is considered, given by $\rho_c(z) \propto (1+z)^{3+\epsilon}$, and constraints on $\epsilon$ are obtained by using galaxy cluster gas mass fractions, and cosmic chronometers measurements. We find that $\epsilon =0$ within 2$\sigma$ c.l., in full agreement with other recent analyses.

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Kamal Bora, R. F. L. Holanda, Shantanu Desai, S. H. Pereira. 2021-06-30. A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers. https://doi.org/10.1140/epjc%2Fs10052-022-09987-3

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